Progress to the top level and gain your FIFA badge ... 
Realistically people cannot manufacture them as it is a trademark that FIFA won't let people use. So you are looking at an ex-FIFA official selling them on something like eBay, or someone selling making them that isn't worried about trademark breach.
Realistically people cannot manufacture them as it is a trademark that FIFA won't let people use. So you are looking at an ex-FIFA official selling them on something like eBay, or someone selling making them that isn't worried about trademark breach.